Monitoring the eye diagram at the output of an embedded analog adaptive equalizer used in a high speed serial link is challenging. Eye measurement using an external oscilloscope is problematic due to the bandwidth of the test setup. In this work, we describe the working principle and design details of a low cost, on-chip monitor circuit that enables the determination of the eye diagram. The eye opening monitor (EOM), implemented in a 65 nm CMOS process, occupies 0.06 mm2 and consumes 5.7 mW from a 1.2 V supply. Measurements demonstrate the efficacy of our techniques. © 2015 IEEE.

Shanthi Pavan Y

Department of Electrical Engineering

Sandeep Krishnan

Networks (circuits)

65NM CMOS

Adaptive equalizer

CMOS processs

EYE DIAGRAMS

EYE-OPENING MONITOR

High speed serial links

ON-CHIP MONITORS

Test setups

CMOS integrated circuits

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

A 10 Gbps eye opening monitor in 65nm CMOS

Proceedings - IEEE International Symposium on Circuits and Systems

We present a low power analog adaptive equalization technique suitable for combating inter-symbol-interference at very high data rates. The proposed technique, which we term the lumped parameter equalizer, addresses several of the problems associated with conventional microwave equalizers based on the tapped delay line structure. The theory is given, and simulation results comparing it with the performance of ideal tapped delay line filters are shown. Circuit implementations are discussed, along with the effect of nonidealities on equalizer performance. © 2008 IEEE.

IEEE Transactions on Circuits and Systems I: Regular Papers

Power and area-efficient adaptive equalization at microwave frequencies

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

New 2-D Eye-Opening Monitor for Gb/s Serial Links

2009 IEEE MTT-S International Microwave Symposium Digest

A 10Gb/s two dimensional scanning eye opening monitor in 0.18um CMOS process

IEEE Journal of Solid-State Circuits

500-MS/s 5-bit ADC in 65-nm CMOS With Split Capacitor Array DAC

Optical Fiber Communication Conference and International Conference on Quantum Information

Fast Eye Monitor for 10 Gbit/s and its Application for Optical PMD Compensation

Journal	Data powered by TypesetProceedings - IEEE International Symposium on Circuits and Systems
Publisher	Data powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
ISSN	02714310
Open Access	No